6878535725 has 12 divisors (see below), whose sum is σ = 8572686804. Its totient is φ = 5474891520.

The previous prime is 6878535701. The next prime is 6878535731. The reversal of 6878535725 is 5275358786.

It can be written as a sum of positive squares in 6 ways, for example, as 36929929 + 6841605796 = 6077^2 + 82714^2 .

It is not a de Polignac number, because 6878535725 - 2¹⁰ = 6878534701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 693404 + ... + 703253.

It is an arithmetic number, because the mean of its divisors is an integer number (714390567).

Almost surely, 2^6878535725 is an apocalyptic number.

It is an amenable number.

6878535725 is a deficient number, since it is larger than the sum of its proper divisors (1694151079).

6878535725 is a wasteful number, since it uses less digits than its factorization.

6878535725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396864 (or 1396859 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 56.

The square root of 6878535725 is about 82936.9382422573. The cubic root of 6878535725 is about 1901.8021428578.

The spelling of 6878535725 in words is "six billion, eight hundred seventy-eight million, five hundred thirty-five thousand, seven hundred twenty-five".